Adhesive applying mechanism



Nov. 9, 1937. H. s. BUCKINGHAM 2,098,857

ADHESIVE APPLYING MECHANISM.

Filed NOV. 4, 1956- 2 Sheets-Sheet l Nov. 9, 1937. A H, S BUQKINGHAM l2,098,857

ADHES IVE APPLYING MEGHANI SM Filed Nov. 4, 1936 2 Sheets-Sheet 2Patented Nov. 9, 1937 UNVriazDk STATES ADHESIVE APPLYING MECHANISVMHarold Scott Buckingham, Bala?Cynfvvyd,l Pa., as-

signer to Silver Seal Dairy Products Qompany, Philadelphia, Pa., acorporation of Delaware Application November 4, 1936,` serial No.10.9.1.9?.

8 Claims.

This invention relates to new and useful improvements in adhesiveapplying devices and more particularly to devices for applying adhesiveto the inner wall surface of a package or sleeve so that a bottom, topor like section may be secured` therein.

To this end, the invention consists in the novel f construction andarrangement of parts hereinafter set forth and shown in the accompanyingdrawings, in which Y Fig. l-is a fragmentary View partially in sectionshowing the details of construction of an adhesive applying device madein accordance with this invention.

Fig. 2 is a viewv in elevation taken along line 2-2, Fig. 1. f

Fig. ElV is a view in perspective illustrating the device andaccompanying mechanism for operating the same; and

Fig; 4 is'a fragmentary View in section of one l form of package orcontainerin conjunction with which the presentinvention may'be employed.

Referring new to the drawings', and particularly Fig; 1A thereof, thedevice contemplated by the present invention comprises a hollow shaft ortube I which is preferably xedly mounted parallel to thesurface of abase or other supporting structure 2 by means of a standard 3. Theouteror lefthandend of the Yhollow tube or shaft. IV is connectedbymeans of apipev or other suitable means 4 and valves 5 and 6 Vtov acontainer 1 which is adapted to be lled with a suitable adhesivesubstance such as glue, paste or the like. 'I'he valve is intended tofunction as a Vprimary shut ofi valve which may be manually operated atwill through its handle 8, Whereas the valve 5 located between the valve6 and the' hollow tube or shaft Iris operative in a manner set forthhereinafter toV intermittently control flow of the adhesive materialfrom the container 'I inwardly of the hollowrshaft or tube I when theshut'oif valve 6 is open during periods of normal operation and use ofthe device. f

Forming an integral part of the hollow tube or shaft I at the oppositeor right hand end thereof is a solid disk-like'portion 9 having adiameter approximately twice that of said hollow tube or shaft portion Iand a series of outlets or ports I0 are formed inthe shaft I inwardlyadjacent said disk-like portion 9 for the purpose of permitting flowcfthe adhesive'material outwardly from the interior ofsaid hollow shaft ortube I.

VA head Itconstituting the adhesive applying.`

member is slidably mounted upon the hollow tube orshaftl for reciprocalmovement longitudinally thereof' and comprises a main body memberv I2and an end or face plateV i3. As shown, a recessv or chamber I4 ofsubstantial depth isV .formed inwardly from the right hand end thereofco.- axially withY respect to the hollow tube ,or shaft I and thediameter of-said recess I4iis substantially equal to'that of thesolid'disk-like end portion 9" cf the hollow tube or shaft I so that thelatter will fit snugly within the recess I ilior relativeV movementaxially thereof after the manner of the movementV or operation of 'apiston `within a cyl-1 inder.

formed circumferentially of the bodyportion I2 and incline :outwardlyfrom adjacent the inner end oi'th'e recess I4. to an annular grooveorchannel I6 in the outer face `ofthe body portion" I2 substantiallymidway Vbetween the recess. I4 andthe periphery of said body portion I2,and

from the vannular groove or channel I6 and provide` connecting passagesbetween the latter anddischarge portsfcr outletsY I8 which open into theperipheral face of the .body member l2.v

The end or faceplate I3 .is secured to the bodymember I2 by any suitablemeans such as Vscrews I9 and the surface of said plate I3 which contactsthe body memberV I2 is provided with a series of` ly spaced radial arms24-haVingvislots 25 in theV extremities thereof which are engaged bypins'- or-4 studs 2 61projecting laterally from opposite sides of thebody portion'IZ adjacent the inner end thereof. The shaft 221s-rocked inalternate directions as vindicated by the arrow in Fig. 3V oftherdrawings by means ofa crank arm v2;'I the' radial extremity of whichis connected to a rocker arm 28 by means of a link or other similarcon'- nectingy element 29. l

The* rocker armv28 is pivotally mountedV adjacentits midpoint at theupper end ofstandardll:

by means of a shaftaspindle or the like `3I` and actuated by Vmeans of acam V32 whichV is iixed upon ashaft 33 drivenfrom a suitable 'sourceof'A plurality of communicating passages' I5 are;

a plurality of ygrooves Il extend radially outward rotary power (notshown) and peripherally contacted by a cam roller 34 rotatably mountedat thelower extremity of a depending arm or leg 35 at one end of saidrocker arm 28. Thus it will.

be observed that during Veach revolution of the cam 32 the head I I willbe actuated through one complete reciprocatory cycle from the position'shown in solid lines in Fig. 1 to the position shown.

in dot and dash lines and back again.

In addition to reciprocating or actuating the head II with respect to orupon the hollow tube or shaft -I and its solid disk-like portion 9, therocker arm 28 also functions to operate the control valve 5 through acrank 36 having a sliding connection with a bar `3'I suitably secured ormounted upon the adjacent face of the rocker arm 28 so that said valve 5will be open to permit the free flow of adhesive fromV the container Ito the hollow tube or shaft I during the advance stroke or movement ofthe head II tothe right` withV respect to Fig. 1 of the drawings andinto the adjacent endof a package, container or like article 38 to whichadhesive is to be applied and close the valve 5 to shut off the flow ofadhesive to the hollow tube or shaft I during return or reverse movementof the head I I to the left with respect to Fig. 1 of the drawings as itis withldrawn from the adjacent end of the package or container 38.

The containers, packages or other articles to receive adhesive from thehead I I are designated generally by reference numeral 38 and aresuccessively positioned'in coaxially spaced relation with respect to thehollow tube kor shaft and said head I I to receive the latter asactuated intothe position shown in dot and dashlines during the advanceor working stroke thereof. Assuming a container, package or the like 38to be positioned in the relation shown in dot and dash lines of Fig. 1of the drawings with respect to the head I I, the latter is actuated tothe right in the manner previously described inwardly of the adjacentend of said container or package 38. The recess I 4 and associatedcommunicating passages are substantially filled with adhesive materialfed through the hollow tube or shaft I through the outlet openings orports I0 therein and as said head II travels to the right with respectto said and deposited onto the adjacent inner wall surface of thecontainer or package 38.

As return or withdrawal of the head commences, the valve 5 controllingthe now of adhesive from the container 1 to the hollow tube or shaft Iis closed thus creating a partial Vacuum .at the tube side of the Valve5 and enabling the disk-like head 9 to exert a suction force or pull onthe adhesive, remaining in the recess I 4 and its communicating passagestending to withdraw said adhesive from the neighborhood or area of thedischarge ports and prevent further discharge or dripping of theadhesive from the head II when withdrawn from within the article 38.

It will be obvious that the adhesive distributing head II 'may beof anydesired configuration or shape other than that shown and describedherein. So too, while specific details of construction o'f the presentinvention have been described and illustrated; it is not intended lthatsaid invention reciprocating distributing head having a chamb er therein-and discharge ports communicating therewith, a relatively fixed'feedingtube extending through said head for supplying adhesive tok the chamberthereof, and an enlarged piston-like extremity on said tube slidablyoccupying said chamber, said piston-like extremity being operative inone stroke of each cycle oi reciprocation of said head to exert pressureon the adhesive in the chamber and discharge the same outwardly throughsaid dischargey ports and in the other stroke to create suction in saidchamber tending to withdraw adhesive from the neighborhood or area of'said discharge ports. n

2. An adhesive applying device comprising a reciprocating` distributinghead having a chamber therein and discharge ports in the peripheralsurface of said head communicating therewith, and a relativelyxedfeeding tube for supplying adhesive to the chamber including an enlargedpiston-like extremity slidably occupying said chamber and operative inone stroke of each cycle of reciprocationV of said head to exertpressure on the adhesive in the chamber Vand discharge the sameoutwardly through said discharge portsv and same outwardly through saiddischarge ports andV in the other stroke to create suction in thechamber tending to withdraw adhesive from the neighborhood or area ofthe discharge ports.

4. An adhesive applying device comprising a.

reciprocable distributing'head having a chamber therein and dischargeports communicating therewith, a relatively fixed feeding tube forsupplying adhesive to said chamber, means for reciprocating the head,and piston-like means forming a part of said feeding tube slidablyoccupying the chamber in said head and operative k in one stroke of eachcycle of reciprocation of the head to exert pressure on" the adhesive insaid chamber and discharge the same outwardly through said dischargeports and in the other stroke to create suction in the chamber tendingto withdraw adhesive from the neighborhood or area of the dischargeports.

5. An adhesive` applying device comprising a reciprocating distributinghead havingpa chamber therein and discharge ports communicatingtherewith, a relatively fixed feeding tube for supplying adhesive to thechamber including an enlarged piston-like extremity slidably occupyingsaid chamber and operative in one stroke of each cycle of reciprocationof said head to exert pressure on the adhesive in the chamber anddischarge the same outwardly through said discharge ports and in theother stroke to create suction in said chamber tending to withdrawadhesive from the neighborhood or area of said discharge ports, a valvecontrolling the feed of adhesive through said tube, and means operativein timed relation with reciprocation of the head to open said valveduring the first mentioned stroke of each cycle of said head and closethe valve during the other stroke thereof.

6. An adhesive applying device comprising a reciprocable distributinghead having a chamber therein and discharge ports communicatingtherewith, a relatively fixed feeding tube for sup- Y plying adhesive tosaid chamber, means for reciprocating the head, relatively fixedpiston-like means slidably occupying the chamber in said head andoperative in one stroke of each cycle of reciprocation of the head toexert pressure on the adhesive in said chamber and discharge the sameoutwardly through said discharge ports and in the other stroke to createsuction in the chamber tending to Withdraw adhesive from theneighboryfhood or area of the discharge ports, a valve controlling thefeed of adhesive to said chamber, and means actuated by the firstmentioned means for opening said valve during the rst mentioned strokeof each cycle of said head and close the valve during said other strokethereof.

7. An adhesive applying device comprising a distributing head having achamber therein and discharge ports communicating therewith, means forsupplying adhesive to said chamber, pistonlike means slidably occupyingsaid chamber, and

means operative to effect relative reciprocation of the head and saidpiston-like means to cause the latter to exert pressure on the adhesiveinthe chamber and discharge the `same outwardly through said dischargeports in one stroke of each cycle of reciprocation of said head andpiston means and in the other stroke thereof to create suction in saidchamber to withdraw adhesive 'from the neighborhood or area of thedischarge ports.

8. An adhesive applying device comprising a distributing head having achamber therein and discharge ports communicating therewith, means forsupplying adhesive to said chamber, pistonlike means slidably occupyingsaid chamber, means operative to eiect relative reciprocation of the'head and said piston-like means to cause the latter to exert pressure onthe adhesive in the chamber and discharge the same outwardly throughsaid discharge ports inv one stroke of each 'cycle of reciprocation ofsaid head and piston means and in the other stroke thereof to createsuction in said chamber to/withdraw adhesive from the neighborhood orarea of the discharge ports, a valve controlling the feed of adhesive tosaid chamber, and means controlled by the means for reciprocating thehead and piston for opening said valve during the rst mentioned strokeand closing the valve during said other stroke.

HAROLD SCO'II BUCKINGHAM.

